Tri-lacunary polyoxometalates of Na8H[PW9O34] as heterogeneous Lewis base catalysts for Knoevenagel condensation, cyanosilylation and the synthesis of benzoxazole derivatives
作者:Shen Zhao、Yang Chen、Yu-Fei Song
DOI:10.1016/j.apcata.2014.01.017
日期:2014.4
development of tri-lacunary polyoxometalates (POMs) of Na8H[A-PW9O34]·7H2O and Na8H[B-PW9O34]·19H2O (Na-A-PW9 and Na-B-PW9) as highlyselective and efficient heterogeneous Lewis base catalysts for Knoevenagel condensation, cyanosilylation of various aldehydes and ketones and the synthesis of benzoxazole derivatives at 25 °C under mild conditions. Since both Na-A-PW9 and Na-B-PW9 display no characteristic porosity
Classical Keggin Intercalated into Layered Double Hydroxides: Facile Preparation and Catalytic Efficiency in Knoevenagel Condensation Reactions
作者:Yueqing Jia、Yanjun Fang、Yingkui Zhang、Haralampos N. Miras、Yu-Fei Song
DOI:10.1002/chem.201501953
日期:2015.10.12
Knoevenagel condensationreactions of various aldehydes and ketones with Z‐CH2‐Z′ type substrates (ethyl cyanoacetate and malononitrile) at 60 °C in mixed solvents (V2‐propanol:Vwater=2:1) demonstrated highly efficient catalytic activity. The synergistic effect between the acidic and basic sites of the Mg3Al‐PW12 composite proved to be crucial for the efficiency of the condensationreactions. Additionally
Palladium-catalyzed bisfunctionalization of active alkenes by β-acetonitrile-α-allyl addition: application to the synthesis of unsymmetric 1,4-di(organo)fullerene derivatives
作者:Shirong Lu、Tienan Jin、Ming Bao、Abdullah M. Asiri、Yoshinori Yamamoto
DOI:10.1016/j.tetlet.2011.12.075
日期:2012.3
A new, efficient palladium-catalyzed bisfunctionalization of ethylidene malononitriles by addition of acetonitrile and allyl groups is developed for the construction of all-carbon quarternary and tertiary centers simultaneously. This methodology is successfully applied to the synthesis of unsymmetric 1,4-disubstituted C-60. (C) 2011 Elsevier Ltd. All rights reserved.
CYANOCARBON COMPOSITIONS
申请人:Ascend Performance Materials Operations LLC
公开号:US20210155579A1
公开(公告)日:2021-05-27
The disclosure relates to the cyanocarbon compositions and processes for producing the same. The cyanocarbon compositions comprise tricyanohexane and one or more coproducts of the tricyanohexane production reaction. Exemplary coproducts include tetracyano compounds, cyanoalkenes, cyanooximes, cyanoamides, and combinations thereof.